Replace existing furnaces with listed equipment. Adapt existing cooling systems to new furnaces. Add 5†Merv 11 filter kits to furnaces along with new plenums. Remove all duct insulation, seal and re-insulate ducting. Seal existing floor cans. Permits and HERS included. After Lennox rebate total $15,501.00. $300 dollar Lennox card sent directly to customer Financing= 90 days no interest/payment default to 120 Months 6.9% interest 0-down $183 per month